CVE-2026-82280

Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/QuivrHQ/quivr
https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/prompt/controller/prompt_routes.py
https://github.com/QuivrHQ/quivr/issues/3698
https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validation
https://github.com/The-Vibe-Company/Quivr/issues/3698

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 20:20

Updated : 2026-08-31 19:17

NVD link : CVE-2026-82280

Mitre link : CVE-2026-82280

CVE.ORG link : CVE-2026-82280

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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